attr-container-style-query.html (668B)
1 <!DOCTYPE html> 2 <title>CSS Values and Units Test: attr() in container style queries</title> 3 <link rel="help" href="https://drafts.csswg.org/css-conditional-5/#container-queries"> 4 <script src="/resources/testharness.js"></script> 5 <script src="/resources/testharnessreport.js"></script> 6 <style> 7 #container { 8 --foo: bar; 9 } 10 @container style(--foo: attr(data-foo type(<custom-ident>))) { 11 #target { color: green; } 12 } 13 </style> 14 <div id="container" data-foo="bar"> 15 <div id="target">Should be green</div> 16 </div> 17 <script> 18 test(() => { 19 assert_equals(getComputedStyle(target).color, "rgb(0, 128, 0)"); 20 }, "style query should implement to true"); 21 </script>